Ion inception voltage in oil

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Original poster: Finn Hammer <f-h@xxxx>

All,

I am wondering how high up the ion inception voltage is moved, when 
the parts in question are put under oil. Anyone?

Cheers, Finn Hammer



> http://hot-streamer.com/temp/CD942C20P15K-MMC-Capacitor-Lifetest.pdf
>
> Of course, we don't know the "function", only the limits.  At 500V 
> (630 V ion inception voltage- dual series)  the plates have no 
> ionization.  They moved down to 500V in the ratings since the 
> voltage gradient is higher at the plate edges.  But at 500V/cap the 
> life should be "forever".  At 2000V they show a decay step at 75 
> hours.  I never tried any other voltages on the tester.